Dental handpiece-mirror.



W. H. BITTMAN.

DENTAL HANDPIEGE MIRROR.

APPLIOATION FILED NOV. 21, 1913.

Patented Feb. 10, 1914.

COLUMBIA PLANDGRAPH co, WASHINGTON. u. c,

UNITED STATES PATENT FFTQ.

WALTER H. BITTMAN, OF PHILADELPHIA, PENNSYLVANIA.

DENTAL HANDPIECE-IVIIRROR.

To all whom it may concern:

Be it known that I, lVALTER H. BI'ITMAN, a citizen of the United States,residing at University of Pennsylvania Dormitories, Philadelphia, countyof Philadelphia, and

tate of Pennsylvania, have invented certain new and useful Improvementsin Dental Handpiece-h iiirrors, fully described and represented in thefollowing specification and the accompanying drawings, forming a part ofthe same.

The present invention relates to a mirror for use with dental enginehandpieces, and constructed with an aperture to pass over the tool andengage a collar or other fastening device upon the hand-piece.

The invention is especially adapted for use upon a rightangle hand-piecefor a dental-engine, as the plane of the mirror in such case liesparallel with the handle of the hand-piece, which enables the operatorto see the reflection therein when performing many operations.

The invention consists broadly of a reflector with a metallic shellfitted to its back and provided with means for securing it upon the handpiece, and the mirror and shell having an aperture to pass over the tooland through which tools may be inserted in and removed from the chuck ofthe hand piece. The mirror is preferably formed with spring clampsadapted to detachably grip a collar upon the hand-piece, and is thusmade removable from the handpiece when its use is not desired.

The invention will be understood by reference to the annexed drawings,in which- Figure l is a side elevation of the handpiece provided withthe improvement; Fig. 2 is a plan of the mirror, and Fig. 8 a centralsection of the mirror and the means of attaching it to the hand-piece.

The hand-piece is shown with head of elbow-shape having right-anglemembers a and I) made in one piece the latter connected with thesupporting-handle 0 by which the operator manipulates the hand-piece,and the former carrying the geared sleeve (Z which is constructed togrip the tool in serted therein, and forms a rotating chuck. A bur (Z isshown held in the sleeve. The member a in which the sleeve revolves, hasa collar a to which the mirror is secured by a spring clamp.

The mirror is shown held by a metallic Specification of Letters Patent.

Application filed November 21, 1913.

Patented Feb. 10, 191a.

Serial No. 802,210.

shell 9 bent over its edge g to grip it firmly. The clamps e as shown inFigs. 2 and 3, are of segmental shape, secured to the shell g, and madeof thin spring metal shaped so as to spring over the collar 6 and holdthe mirror detachably thereon.

The shape of the mirror is immaterial and the form of its reflectingsurface provided it is of circular or annular form to fit around thetool upon the angle-hand-piece.

The essential feature of the invention is the attachment of a mirror tothe handpiece with a perforation through the mirror by which a tool canbe inserted in and removed from the hand-piece with the mirror in place.

It is preferable that the mirror should be detachable from thehand-piece, as its use would only be required in certain operations, andit is immaterial how the mirror is detachably connected with thehand-piece.

The mirror is especially useful to a dentist when operating upon teethin the upper jaw, and may be attached to the hand-piece during suchoperations and removed at other times; but I do not limit myself to anyparticular use of the mirror.

Having thus set forth the nature of the iiivention, what is claimedherein is 1. The combination, with the angle handpiece of a dentalengine having a revolving tool, of a perforated mirror secured upon suchhand-piece around the said tool.

2. An attachment for the angle hand-piece of a dental engine having arevolving tool, consisting of a mirror perforated to fit removably overthe hand-tool, and means for clamping the mirror detachably to thehandpiece.

3. An attachment for the angle handpiece of a dental engine having arevolving tool, consisting of an annular mirror, an annular metallicshellfitted to the back and edge of such mirror, and opposed elasticjaws upon the back of the shell adapted to detachably embrace a collarupon the handpiece surrounding the tool.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

VALTER H. BITTMAN.

Witnesses:

Gr. E. NITZSCHE, E. A. WELDEN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

